Entomology (Study of Bugs)/worm



I found several of these in the shower
we are deer hunters and spend thousands of hours in the woods
we have a labrador retriever
are these coming off of us the humans or coming off the dog
Never saw anything like this before
we live in york PA


Insect larvae are nearly impossible to identify without specimens and a good microscope.

That said, I don't think these are coming from either the dog *or* people.  There are several kinds of fly larvae that exist in drain traps, under failing bathroom tiles, and similar situations where there is constant moisture and some quantity of decaying organic matter (it doesn't take much).

My main suspect would be moth flies ("drain flies") in the family Psychodidae.  Here is my blog post about them:


The above link also includes links to additional fact sheets and images.  In any event, thee larvae should be considered at worst a nuisance and not a health threat.  Still, I would consider taking specimens to the veterinarian, or an entomologist at a university (Penn State has an entomology department), natural history museum, or even the public health department (vector control division will have at least one staff entomologist). He or she can then put the critters under a microscope and render a concrete verdict.

Please let me know if you get a disagreeing opinion from one of the above resources, so that I can better address future questions along this line.



Entomology (Study of Bugs)

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Eric R. Eaton


I answer insect and spider identification questions ONLY. Attach images if possible. No "what bit me?", "what do I feed this bug in captivity?", or science fair project questions please. NO TECHNICAL QUESTIONS ABOUT INSECT PHYSIOLOGY.


Principal author, Kaufman Field Guide to Insects of North America. Professional entomologist employed previously at University of Massachusetts, Chase Studio, Inc., and Cincinnati Zoo; contract work for West Virginia Department of Natural Resources, Smithsonian Institution, and Portland (Oregon) State University.

Author, Kaufman Field Guide to Insects of North America, Missouri Conservationist magazine, Ranger Rick, Birds & Blooms, Timeline (journal of the Ohio Historical Society). I have contributed to several books as well.

Oregon State University, undergraduate major in entomology, did not receive degree.

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One of the top 50 experts in all categories for AllExperts.com, 2009.

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Principal author of the Kaufman Field Guide to Insects of North America, Smithsonian Institution (contract), Cincinnati Zoo (employer), Portland State University (contract), Chase Studio, Inc (employer), Arkansas Museum of Discovery (guest speaker). Currently seeking speaking engagements, leadership roles at nature festivals, workshops, and ecotours.

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